I'm new to Django and I'm building a web-page which displays model's info in a table format. I discovered for myself a very useful library - django-tables2 which makes building html tables very simple.
However, I am not able to figure out how to customize the rendering of one of the table columns. Specifically, I want a link column (I think it is implemented using LinkColumn or URLColumn in django_tables2) to render into
<a href="http://example.com">Personal Webpage</a>
instead of the django_tables2 way, where the link name is by default the link url.
<a href="http://example.com">http://example.com</a>
Where does this logic belong - in the model, in the view or in the template?
# models.py
class Person(models.Model):
...
personal_webpage = models.URLField()
#personal_webpage = models.URLField(display_link_name = "Personal Webpage") # is something like this possible at the model level?
# table.py
import django_tables2
import my_app.models import Person
class PersonTable(django_tables2.Table):
class Meta:
model = Person
#personal_webpage = URLColumn(url_name = "Personal Webpage") # is something like this possible?
# views.py
from django.shortcuts import render
from django_tables2 import RequestConfig
from my_app.models import Person
from my_app.table import PersonTable
def personal_page_view(request):
table = PersonTable(Person.objects.all())
RequestConfig(request).configure(table)
return render(request, "my_app/personal_webpage.html", {"table": table})
#personal_webpage.html
{% load render_table from django_tables2 %}
<!doctype html>
<html>
...
<body>
...
{% render_table table %}
</body>
</html>
I haven't yet looked into django/django_tables2 source code, and hopefully some will have a suggestion.
UPDATE: I searched around more for the solution, found a proposed solution:
#tables.py
class CustomTextLinkColumn(django_tables2.LinkColumn):
def __init__(self, viewname, urlconf=None, args=None,
kwargs=None, current_app=None, attrs=None, custom_text=None, **extra):
super(CustomTextLinkColumn, self).__init__(viewname, urlconf=urlconf,
args=args, kwargs=kwargs, current_app=current_app, attrs=attrs, **extra)
self.custom_text = custom_text
def render(self, value, record, bound_column):
return super(CustomTextLinkColumn, self).render(self,
self.custom_text if self.custom_text else value,
record, bound_column)
class PersonTable(django_tables2.Table):
webpage_link = CustomTextLinkColumn('my_app.views.personal_page_view', args=[A('personal_webpage')],
custom_text='Personal Webpage', verbose_name='Personal Webpage', )
But it doesn't seem to work. The column gets rendered, but the cells of the column don't contain "Personal Webpage", and instead "---".
a little late answer, but you should change your
PersonTableclass like this:class PersonTable(django_tables2.Table): personal_webpage = CustomTextLinkColumn('my_app.views.personal_page_view', args=[A('personal_webpage')], custom_text='Personal Webpage', verbose_name='Personal Webpage', ) class Meta: model = PersonThe important (and not very clear) thing thing to keep in mind is that "render methods are only called if the value for a cell is determined to be not an empty value". Since your model does not have a webpage_link field or attribute, there's no value given to it. So you can either change the name to
personal_webpageas I propose or pass theempty_values=()to your Column init as proposed in the answer to this question: Django Tables adding a LinkColumn / NoReverseMatch Error